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%I #6 Nov 10 2015 12:01:50
%S 64,760,14893,397462,7877184,180566464,3975678008,87271645407,
%T 1939441223920,42768847809756,945957883808788,20917194859073820,
%U 462320865453639648,10222639186830500032,225997864877168619385
%N Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,1 0,-1 0,2 1,0 or -1,0.
%C Row 4 of A264257.
%H R. H. Hardin, <a href="/A264260/b264260.txt">Table of n, a(n) for n = 1..208</a>
%e Some solutions for n=3
%e ..4..2..3..1....1..0..3..2....4..0..3..2....1..0..6..7....1..5..3..2
%e ..0..6..7..5....8..4..5..6....8..1.10..5....8..9..2..3....0..9..7..6
%e ..9..8.11.10....9.10.11..7....9.13..6..7....4..5.14.10....4..8.11.15
%e .16.12.18.14...16.17.15.19...16.14.15.11...16.12.18.11...16.14.10.19
%e .17.13.19.15...12.13.14.18...12.18.19.17...17.13.19.15...12.13.17.18
%Y Cf. A264257.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 09 2015
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